[bowsamic]

I don't think so, I think it's more that we grew to live in a "feast famine" environment, but suddenly we are now in an environment with infinite food. It goes against our instincts to not eat food that is there. Instead we have to hope we have the willpower to overcome it with our rational thought processes. Most people, if they are not busy with other things, will want to eat. "Thankfully" we have capitalism and so people are busy and pushed to be even busier. I think without that, if we really had time to sit and relax without those mental pressures of progression, we would be much fatter.

It is just one of the ways that human material conditions has quickly changed way faster than the human animal has managed to evolve for it, and so it is unsuited for such environments. I think we might eventually have a technological solution (everyone on appetite suppressants)